how to call a web service method in asp.net master page using jquery

public List<chartentity> chartAnalysis(string data1, string data2, string loc)
       {
           string str1 = data1;
           string str2 = data2;
           string location = loc;
           List<chartentity> chartinfo = new List<chartentity>();
           DataSet ds4 = new DataSet();
           using (SqlConnection con = new SqlConnection("Data Source=xxxx;User Id=sxxxa;Password=xxx;DataBase=xxx"))
           {
               using (SqlCommand cmd = new SqlCommand())
               {
                   //cmd.CommandText = "exec sp_AreaWiseSales_DashBoard_REP '2012-02-02','2012-07-08',1";
                   cmd.CommandText = " exec sp_AreaWiseSales_DashBoard_REP '" + str1 + "' ,'" + str2 + "','" + location + "'";
                   cmd.Connection = con;
                   using (SqlDataAdapter da = new SqlDataAdapter(cmd))
                   {
                       da.Fill(ds4);
                   }
               }
               con.Close();
           }
           if (ds4 != null)
           {
               if (ds4.Tables.Count &gt; 0)
               {
                   if (ds4.Tables[0].Rows.Count &gt; 0)
                   {
                       foreach (DataRow dr in ds4.Tables[0].Rows)
                       {
                           chartinfo.Add(new ChartEntity { Name = dr["AreaName"].ToString(), value = Convert.ToInt32(dr["Amt"]) });
                       }
                   }
               }
           }

           return chartinfo;
       }

$.ajax({
                    type: "POST",
                    contentType: "application/json; charset=utf-8",
                    url: "Services/New.asmx/chartAnalysis",  //I am calling the service here.But it is not call to the method how can i call it.There is another way to call the service method 
                    
                    
                    data: JSON.stringify({ data1: "2012-02-05", data2: "2012-05-05", loc: "1" }),
                    
                    totaldata: "{},{}",
                    dataType: "json",
                    success: function (Result) {
                        Result = Result.d;
                        var data = [];

                        for (var i in Result) {
                            var serie = new Array(Result[i].Name, Result[i].value);
                            data.push(serie);
                        }
                        DreawChart3(data);
                    },
});